United States · Funded startup

Who invested in Spiration

5 rounds we have observed, with the 8 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Medical Devices

Funding summaryUpdated 26 Oct 2026

$81Mraised across 5 rounds since 2002, from 5 sources

$22MSeries D$27MSeries E$19MSeries G$7.0MDebt$6.5MDebt
Latest round
Debt, $6.5MApr 2010
Biggest round
$27MSeries E · Jan 2004
Investors
8
See who backed them

The funding story

Each circle is a round, placed by date and sized by amount. The line above is the running total.

2004200620082010
$22MSeries D$27MSeries E$19MSeries G$7.0MDebt$6.5MDebt
First round
Series D, $22M
Nov 2002
Biggest round
$27M
Series E · Jan 2004
Usual gap between rounds
18 months
the median of 4

The rounds

  1. Apr 2010
    Debt$6.5M

    No investor was named in the report.

    Reported by sec.govSEC filing: $6.5M sold, first sale Apr 2010

  2. Sept 2009
    Debt$7.0M

    No investor was named in the report.

    From a historical funding recordSEC filing: $7.0M sold, first sale Sept 2009

  3. Mar 2008
  4. Jan 2004
  5. Nov 2002
    Series D$22M

    No investor was named in the report.

    From a historical funding record

Founders and team

From the SEC filings it signed: 2 on the team.

  • Gregory SesslerExecutive Officeri
  • Richard SheaExecutive Officer, Directori

On the board, as filediClifton AlfernessJeani DelagardelleMichael KoppRebecca RobertsonSigrid Van Bladel

Who was in which round

The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.

Everyone who backed them

InterWest PartnersVC firm2rounds
Versant VenturesVC firm2rounds
Three Arch PartnersGrowth equity2rounds
Sprout GroupGrowth equity1round
GuidantCorporate VC1round

Missing a round, or an investor who was in one? Tell us.

Quick answers about Spiration

Who invested in Spiration?

Spiration's investors include New Enterprise Associates, InterWest Partners, Versant Ventures, Three Arch Partners and Investor Growth Capital Limited, and 3 more on record.

How much has Spiration raised?

Spiration has raised $81M across 5 rounds since 2002.

When did Spiration last raise?

Spiration's most recent round was a Debt of $6.5M in Apr 2010.

What was Spiration's biggest round?

Spiration's largest round on record is $27M (Series E), in Jan 2004.

Who backed Spiration first?

Spiration's first round on record, in Jan 2004, was backed by New Enterprise Associates, InterWest Partners and Versant Ventures and 4 others.

What stage is Spiration at?

Spiration's latest named round is a Debt, in Apr 2010.

Where is Spiration based?

Spiration is based in the United States.

Companies like Spiration

In the same sector, and raised in the last eighteen months.

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